Population genomics of Digitaria insularis from soybean areas in Brazil.

ABSTRACT:

Background

Digitaria insularis is a weed species that has gained considerable importance in Brazil's soybean production areas that rely on glyphosate-resistant cultivars. Herbicide-resistant weed populations of this species have been reported in many regions in Brazil, first in the south, followed by later reports in the north. We hypothesized that the spread of herbicide-resistant D. insularis is facilitated by movement of agricultural machinery from the southern regions of Brazil.

Results

Population genomics revealed a weak or no genetic structure (F_ST  = [0; 0.16]), moderate expected heterozygosity (H_E  = 0.15; 0.44) and low inbreeding (F_IS  = [-0.1; 0.1]) in D. insularis populations. Our data supported the hypothesis that herbicide resist

SUBMITTER: Goncalves Netto A 

PROVIDER: S-EPMC9291757 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature